• An unknown acid (HA) was titrated with NaOH(aq). • The following titration curve was constructed using the laboratory data. You will use this titration curve to answer the questions related to this problem. • Assume that all laboratory work was completed at 298 K. 14 12 10 6. 4. 2. 4 9. 8. 10 12 14 16 18 20 22 24 26 28 30 Volume of Titrant / mL Which of the following net ionic equations explains the pH of the analyte solution before any titrant is added? A (aq) + H20(1) <=> HA(aq) + OH (aq) A (aq) + H3O*(aq) --> HA(aq) + H20(1) O H*(aq) + OH (aq) H20(1) --> O HA(aq) + OH (aq) --> H2O(aq) + A (aq) HA(aq) + H20() <=> H3O*(aq) + A (aq)

Principles of Modern Chemistry
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Author:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler
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Chapter11: Solutions
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• An unknown acid (HA) was titrated with NaOH(aq).
• The following titration curve was constructed using the laboratory data. You
will use this titration curve to answer the questions related to this problem.
• Assume that all laboratory work was completed at 298 K.
14
12
10
6.
4.
2.
4
9.
8.
10
12
14
16
18
20
22
24
26
28
30
Volume of Titrant / mL
Which of the following net ionic equations explains the pH of the analyte
solution before any titrant is added?
A (aq) + H20(1)
<=> HA(aq) + OH (aq)
A (aq) + H3O*(aq) --> HA(aq) + H20(1)
O H*(aq) + OH (aq)
H20(1)
-->
O HA(aq) + OH (aq)
--> H2O(aq) + A (aq)
HA(aq) + H20() <=> H3O*(aq) + A (aq)
Transcribed Image Text:• An unknown acid (HA) was titrated with NaOH(aq). • The following titration curve was constructed using the laboratory data. You will use this titration curve to answer the questions related to this problem. • Assume that all laboratory work was completed at 298 K. 14 12 10 6. 4. 2. 4 9. 8. 10 12 14 16 18 20 22 24 26 28 30 Volume of Titrant / mL Which of the following net ionic equations explains the pH of the analyte solution before any titrant is added? A (aq) + H20(1) <=> HA(aq) + OH (aq) A (aq) + H3O*(aq) --> HA(aq) + H20(1) O H*(aq) + OH (aq) H20(1) --> O HA(aq) + OH (aq) --> H2O(aq) + A (aq) HA(aq) + H20() <=> H3O*(aq) + A (aq)
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